Hose.



PATENTED APR. 3, 1906. E. T. GREENPIELD. HOSE. APPLICATION FILED APBLZQ.1905.

j NVENTRI EDWIN r. GnEENFiELD, or MoNTieELLo, NEW YORK.

use..

Specification of Letters Patent,

Application filed April 24,1905. Serial No. 257,071.`

Patented. April 3, 1096.

To all whom it may cm1/cern.-

Be it known that I, EDWIN T. GREENFIELD, a citizen of the United States,residing at Monticello, county of Sullivan, and State of New York, havemade a new and useful lnvention in Hose, of which the following is aspecification.

-My inventioil is directed particularly to an improvement 1n means forgiving increased strenth to such parts of a hose as are subjected toextreme bending effects, and especially at points where the'same isconnected to a coupler, and therefore necessarily subjected to greatstrain, and will be fully understood by referring to the accompanyingdrawings, in, which-- Figure 1 illustrates alongitudinal sectional viewof a flexible armored hose and a coupling connection, such as isdisclosed in a prior application 'filed by me on the 12th day ofJanuary, 1905, and bearing Serial N o. 240,7 22, my improvement beingapplied theretd. Fig. 2 is a transverse sectional view taken throughFig. 1 on the line X X and as seen looking thereat from right to left inthe direction of the arrows. Referring to the drawings in detail, in

' `which. like numerals represent like parts at 8, and provided withcylindrical shouldersv wherever used, 1 2 3 represent a flexible hoseand the interlocking armor therefor of what is` known in the art as theGreeniield armored hose, disclosed in a prior atent granted to me by theUnited States Vatent @flics on' the 8th day numbered 746,630.V

6 6 represent half or two-part cou lingrings which are screw-threadedinterna ly to conform to the spiral or screw-threaded 4conformation ofthe armor-strips 2 3, said rings .being provided with a air of lugs orears l 4,

adapted to receive bo tsl 5 5. Each half or two-part coupling-ring isprovided at one end with an internally-projecting shoulder 7, adapted tobear when in locked osition against a ring-sh aped part 9, integra witha connecting-sleeve 10, bell-mouthed, as shown 11 and 13, 12 being aconnecting-ring screwthreaded internally and provided extern ally withradially-disposed integral lugs or pins for effecting the manipulationof the ring by a pipe-wrench.

14 1s arkwater-tight gasket adapted to make a water-tight oint betweenthe inner end of the cylindrica shoulder 11 and the abutting end of thecoupling connection 16 of a hysubject-matter of .the before-mentioned ofDecember, 1903 ,and

tion.

. drant, said connection-'being screw-threaded l` The parts so fardescribed constitu-te'they 5LP plication and are-simply shown anddescribed ere .for the purpose of illustrating the improved means ofstrengthening a hose at the point where it is secured to a coupler or atsuch point as may be sub`ected to frequent great bending strain. T ismeans constitutes in the resent instance a flexible sleeve composed ointerlocking' metal strips 18 19, similar in all respects to the armorcomposed of the two strips 2 3, except that of course this sleeve is ofproper diameter to fit snugly about the entire armored hose in themanner shown. This two-part coupling-sleeve is provided withexternally-disposedY shoulders 23.

20 20 represents a second or supplemental two-part coupling-ringscrew-threaded internallll with one or more threads 24, having the pitcof the spirallydisposed interlocking metal strips 18 19 and Tprovidedeach with internally-proj ecting shoulders 22, adapted to grip thecorresponding externally-projecting shoulders 23 of the twoartcoupllng-ring 6.

21 21 are bolts extendlng through the boltholes in lugsor ears of thissecond two-part coupling-ring, said bolts being provided with nuts, asclearly shown in Fig. 2.

The parts f the structure are put together as follows: Thestrengthening-sleeve composed of the interlocking metal strips 18 19 is`rst screwed into position over the end of the hose a distancesubstantially equal to the length of the two-part coupling-sleeve. Theend of the hose is then forced over the connectingr sleeve 10 until the-lined thereof abuts iirml against the'ring-shaped part 9 after whichTtlie-tWo-part couplingring is locked in position through the agency ofbol ts 5 5 in the manner disclosed in the before-mentioned applicationand as is perfectly obvious on inspection of the drawings. The secondair of two-part coupling-rings is then secure in place, with theinternall -projecting shoulders 22 locking against t e eX-ternally-projecting shoulders 23 of the first pair of two-partcoupling-rings and with the corresponding screw-threads 24 thereof iirmlsecured against the outer surface of the flexlble strengthening-sleevethrough the agency of the bolts 21 21Y and a corresponding pair ofportion IIO nuts, as clearly shown in Fig. 2 of the drawl ings. Such astrengthening-sleeve by reason of its interlocking relation to theinterlocking armor and the hose gives material strength to the same atthe point of connection with the coupler, and to such an extent that asI have ascertained there is never any rupture at this point no matterwhat may be the bending stress put u on the parts.

Although I haves own and described my improvement as applicable toarmored hose, I do not limit it specifically to this use, as obviouslyit may be used with flexible hose generally, the essence of my inventionlying in the provision of a ilexible metallic strengthening-sleeveconstructed of spirally-disposed inter ocking strips secured about ailexible, hose through the agency of interlocking or clamping parts, andmy claims are designed to be oi such sco e as to include such structuraldevices, altliough the preferred Jform is that which is hereinbeforedescribed, and illustrated in the accom anying drawings.

Having thus describe my invention, What I claim, and desire to secure byLetters Patent of the United States, is-

1. A ilexible armored hose provided with coupling means for securing itto a point of attachment; in combination With a flexible metal sleevesurrounding the armor and a second coupler Which binds the sleeve to thearmor and connects it to the first-named coupler. 2. A hose having anarmor of interlocking flexible metallic strips; in combination with astrengthening-sleeve composed of similar surrounding interlockingmetallic strips, said sleeve being located at a point Where the hose issubjected to frequent severe bendin strain. 3.Aflexiblehosehavingaspirallyisposed armor; in combination With a couplerembracing a connecting-sleeve and a two-part coupling-ringscrew-threaded internally; together with a spirally-disposedstrengthening-sleeve surrounding the armor and a second two-part coupleradapted to secure the sleeve around the armor and to the firstnamedcoupler.

In testimony whereof I have signed my name to this`s`peciiication in thepresence of two subscribing Witnesses.

EDWIN T. GREENFIELD.

Witnesses:

C. J. KINTNER, M. T. KEATING.

